Let's assume a remote debugger is connected to the local JVM. At some point if a JVMTI agent (other than the debugger one) sets a breakpoint via SetBreakpoint, will it be visible to the remote debugger? Will the remote debugger be able to step over or removee this breakpoint?
By visible I mean that the breakpoint hit event will be sent to the remote debugger, as a result the debugger would be able to behave in the same way as if he was the one that did set the breakpoint.
Setting breakpoints and receiving Breakpoint events requires can_generate_breakpoint_events capability. In HotSpot JVM this capability is exclusive (or solo), i.e. can_generate_breakpoint_events may be possessed by only one JVM TI environment at a time.
In other words, the described situation can never happen: when JDWP agent is present, no other JVM TI agent may set breakpoints or subscribe to Breakpoint events.